| a North American maple, Acer negundo, having light gray-brown bark, pinnate, coarsely toothed leaves, and dry, winged fruit, cultivated as a shade tree, and yielding a light, soft wood used in making furniture, woodenware, etc. |
| box elder n. A North American maple tree (Acer negundo) having pinnately compound leaves with coarsely toothed to lobed leaflets. Also called ash-leaved maple. |